User guide

Viewing and Editing Images
12-19
Fig. 12-14. Two views of the Frequency Distribution histogram.
Gamma Slider
Some images may be more effectively visualized if their data are mapped to
the computer screen in a nonlinear fashion. Adjusting the Gamma slider
handle expands or compresses the contrast range at the dark or light end of
the range, and this is reflected in the Transform Plot and Preview Window.
Low-High magnifies
area between sliders
Can better distinguish background
noise from real data
Low slider remaps background noise to white High slider remaps weaker signals to black
Range of actual
data in the image
is very limited
Log scaling enables you to
better distinguish peaks